Improvement in harvester-cutters



UNITED STATES PATENT EEIGE.

RUFUS BUTTON, OF YONKERS, NEYVA YORK.

IMPROVEMENT IN HARVESTER-CUTTERS.

Specification forming part of Letters Patent No. 157,59l, dated December 8, 1874 application led March 9, 1874.

ter and State of New York, have invented a 4 new and useful Improvement in the Cutting Device for Harvesting-Machines; and I do hereby declare that the following is a full, clear, and exact description thereof, and of the inode or manner of operation, reference being had to the accompanying drawings, and to the letters of reference marked thereon, and making a part of this specification.

Figure l is a plan View, showing a section of the nger-bar and knife, with two fingers connected thereto. Fig. 2 is an end view. Fig. 3 is a vertical section ofthe same.

Similar letters indicate corresponding parts.

This invention relates to a new and improved method of holding down the sections in what is called a removable or detachable section knife to the under surface of the slot ofthe finger, so as to make a close shear-cut. This I accomplish by forming a projecting rib in the upper front cornerof the cross-bar, over which slides a recess-piece, e. This piece is riveted to the knife-section, and has a support extending from the back ofthe knife and resting upon the finger-bar.

A represents a section of the iinger-bar; B, the fingers; G, the knife-sections; D, a round knife-back 5 E, piece bent around the knifeback, and to Which the knife-sections are riveted. This piece I term a jacket. a is the front end of the jacket, so bent as to form a recess, which slides over the projecting rib on the front edge of the cross-bar; the cross-bar,

in this case, being made by rolling up the front edge of the finger-bar, of which it forms a part. b and c are nuts for clamping together the sections on the rod l), which forms the knife-back. d is a projecting tongue formed by turning back part of the jacket. This tongue rests'upon the finger-bar A, as seen in the drawing, and serves as a bearing to hold down the front end of the section C. The sections C C are each riveted to the jacket-pieces E E, which are made of the same length as the sections. The section is riveted upon the jacket in such a manner as to form a projection on one end, which interlocks and upholds the adjoining section. e shows the recess formed on the front end of the jacket, which recess slides upon the projecting rib a of the cross-bar; The iingers are out away so as not to interfere with the free movement of the projection when the knife is at work. The knife-back in this invention is made of round steel, making it necessary to hold each section by itself down upon the surface of the slot. This I accomplish in the manner described.

What I claim as my invention, and desire to secure by Letters Patent, is-

The projecting rib from the front edge of the cross-bar, in combination with the recess or interlocking piece attached. to the knifesection, substantially as described.

RUFUS DUTTON. Witnesses:

WM. P. FITCH, JAMES S. FITCH. 

